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Discussion Topic:
Brake switch
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silverchief |
10-09-2021 @ 12:00 PM
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Senior
Posts: 521
Joined: Oct 2009
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The brake switch on my 46 coupe has given up the ghost. What is involved installing a new one - simply a matter of unscr*w*ng the old one and scr*w*ng in the new one - or is there more to it? Thanks
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1931 Flamingo |
10-09-2021 @ 1:04 PM
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Member
Posts: 387
Joined: Nov 2019
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Just do as you said. Paul in CT
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51woodie |
10-10-2021 @ 6:19 AM
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Senior
Posts: 510
Joined: Jan 2017
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Have the new one ready to install (in your hand) as soon as you remove the old one, as fluid will start to leak out when the old one is removed. Check the fluid level when you’re done, and top up as needed.
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silverchief |
10-10-2021 @ 11:34 AM
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Senior
Posts: 521
Joined: Oct 2009
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Thanks very much.
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37RAGTOPMAN |
10-10-2021 @ 2:56 PM
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Senior
Posts: 1960
Joined: Oct 2009
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HI Are you using silicone brake fluid ? silicone brake fluid destroys the brake light switch over a period of time, I have first hand knowledge of this problem, I have heard that HARLEY DAVIDSON , brake light switches work with silicone brake fluid they were designed for if you are using regulator brake fluid like dot 3 I use snythetic brake fluid, for years now with no problems, it might be a good time to flush the system, ? if the fluid is old my 2 cents 37Ragtopman
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silverchief |
10-11-2021 @ 2:52 PM
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Senior
Posts: 521
Joined: Oct 2009
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Thanks Ragtopman - my fluid is dot 3 and fairly new.
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flathead4rd |
10-12-2021 @ 10:59 AM
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New Member
Posts: 169
Joined: Oct 2009
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I always fill the port in the new switch with brake fluid before installing it.
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silverchief |
10-16-2021 @ 11:41 AM
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Senior
Posts: 521
Joined: Oct 2009
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I installed the new brake light switch but the lights do not work. Verified the circuit is good by jumping the two wires while off the switch. Can I do a test at the switch without removing it from the car to verify it is bad before I return it to the vendor? Thanks
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Mr Rogers |
10-16-2021 @ 8:31 PM
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New Member
Posts: 106
Joined: Jul 2019
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Check for ground.
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TomO |
10-16-2021 @ 8:46 PM
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Senior
Posts: 7252
Joined: Oct 2009
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You can test the switch with your voltmeter. One terminal will always have voltage and the other will have voltage when you press the brake pedal. Connect your voltmeter black lead to the terminal that does not have voltage and press the brake pedal while watching the meter
Tom
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